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What is the primary function of the digestive system?
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The primary function of the digestive system is to break down food into nutrients that the body can absorb and use for energy, growth, and cell repair.
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What are the major organs of the digestive system?
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The major organs of the digestive system include the mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas, and gallbladder.
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Where does digestion begin?
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Digestion begins in the mouth, where food is chewed and mixed with saliva.
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What is the role of saliva in digestion?
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Saliva contains enzymes that begin the process of breaking down carbohydrates in the food.
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What is peristalsis?
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Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract.
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What is the function of the stomach in digestion?
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The stomach secretes acid and digestive enzymes that continue to break down food into a semi-liquid form called chyme.
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How does the small intestine contribute to digestion?
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The small intestine continues digestion and is the primary site for nutrient absorption into the bloodstream.
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What is the role of the liver in digestion?
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The liver produces bile, which helps digest fats and is stored in the gallbladder.
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What is the function of the pancreas in the digestive system?
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The pancreas produces digestive enzymes and bicarbonate to neutralize stomach acid entering the small intestine.
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What is the role of the large intestine in digestion?
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The large intestine absorbs water and electrolytes from remaining food matter and compacts it into feces.
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What is the purpose of villi in the small intestine?
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Villi are small finger-like projections that increase the surface area for nutrient absorption in the small intestine.
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How do enzymes support the digestive process?
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Enzymes break down large food molecules into smaller molecules that the body can absorb.
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What is chyme?
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Chyme is the semi-liquid mixture of partially digested food and digestive juices present in the stomach and small intestine.
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What role does the gallbladder play in digestion?
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The gallbladder stores bile produced by the liver until it is needed in the small intestine.
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What is the final stage of digestion called, and where does it occur?
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The final stage is called defecation, and it occurs in the large intestine where waste is expelled from the body.
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